Environmental Engineering Reference
In-Depth Information
100%
Electricity imports
Other
Wind
Solar PV
Geothermal
Waste
Wood
Hydro
Nuclear
Other gases
Natural Gas
Petroleum
Coal
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Figure 7.1
. Percentage of Contribution to Generation by Energy Source, 1990-2011
Source
: Energy Information Administration (2013).
